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1 /* |
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2 SDL - Simple DirectMedia Layer |
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3 Copyright (C) 1997-2006 Sam Lantinga |
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4 |
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5 This library is free software; you can redistribute it and/or |
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6 modify it under the terms of the GNU Lesser General Public |
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7 License as published by the Free Software Foundation; either |
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8 version 2.1 of the License, or (at your option) any later version. |
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9 |
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10 This library is distributed in the hope that it will be useful, |
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11 but WITHOUT ANY WARRANTY; without even the implied warranty of |
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12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
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13 Lesser General Public License for more details. |
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14 |
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15 You should have received a copy of the GNU Lesser General Public |
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16 License along with this library; if not, write to the Free Software |
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17 Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA |
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18 |
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19 Sam Lantinga |
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20 slouken@libsdl.org |
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21 */ |
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22 #include "SDL_config.h" |
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23 |
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24 #include <X11/Xlib.h> |
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25 #include <X11/Xutil.h> |
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26 |
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27 #include "SDL_version.h" |
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28 #include "SDL_timer.h" |
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29 #include "SDL_video.h" |
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30 #include "SDL_syswm.h" |
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31 #include "../SDL_pixels_c.h" |
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32 #include "../../events/SDL_events_c.h" |
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33 #include "SDL_x11modes_c.h" |
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34 #include "SDL_x11wm_c.h" |
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35 |
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36 static Uint8 reverse_byte(Uint8 x) |
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37 { |
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38 x = (x & 0xaa) >> 1 | (x & 0x55) << 1; |
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39 x = (x & 0xcc) >> 2 | (x & 0x33) << 2; |
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40 x = (x & 0xf0) >> 4 | (x & 0x0f) << 4; |
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41 return x; |
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42 } |
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43 |
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44 void X11_SetIcon(_THIS, SDL_Surface *icon, Uint8 *mask) |
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45 { |
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46 SDL_Surface *sicon; |
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47 XWMHints *wmhints; |
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48 XImage *icon_image; |
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49 Pixmap icon_pixmap; |
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50 Pixmap mask_pixmap; |
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51 Window icon_window = None; |
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52 GC gc; |
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53 XGCValues GCvalues; |
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54 int i, dbpp; |
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55 SDL_Rect bounds; |
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56 Uint8 *LSBmask; |
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57 Visual *dvis; |
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58 char *p; |
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59 int masksize; |
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60 |
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61 SDL_Lock_EventThread(); |
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62 |
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63 /* The icon must use the default visual, depth and colormap of the |
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64 screen, so it might need a conversion */ |
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65 dvis = DefaultVisual(SDL_Display, SDL_Screen); |
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66 dbpp = DefaultDepth(SDL_Display, SDL_Screen); |
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67 for(i = 0; i < this->hidden->nvisuals; i++) { |
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68 if(this->hidden->visuals[i].visual == dvis) { |
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69 dbpp = this->hidden->visuals[i].bpp; |
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70 break; |
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71 } |
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72 } |
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73 |
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74 /* The Visual struct is supposed to be opaque but we cheat a little */ |
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75 sicon = SDL_CreateRGBSurface(SDL_SWSURFACE, icon->w, icon->h, |
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76 dbpp, |
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77 dvis->red_mask, dvis->green_mask, |
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78 dvis->blue_mask, 0); |
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79 if ( sicon == NULL ) |
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80 goto done; |
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81 |
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82 if(dbpp == 8) { |
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83 /* Default visual is 8bit; we need to allocate colours from |
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84 the default colormap */ |
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85 SDL_Color want[256], got[256]; |
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86 int nwant; |
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87 Colormap dcmap; |
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88 int missing; |
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89 dcmap = DefaultColormap(SDL_Display, SDL_Screen); |
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90 if(icon->format->palette) { |
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91 /* The icon has a palette as well - we just have to |
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92 find those colours */ |
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93 nwant = icon->format->palette->ncolors; |
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94 SDL_memcpy(want, icon->format->palette->colors, |
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95 nwant * sizeof want[0]); |
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96 } else { |
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97 /* try the standard 6x6x6 cube for lack of better |
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98 ideas */ |
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99 int r, g, b, i; |
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100 for(r = i = 0; r < 256; r += 0x33) |
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101 for(g = 0; g < 256; g += 0x33) |
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102 for(b = 0; b < 256; b += 0x33, i++) { |
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103 want[i].r = r; |
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104 want[i].g = g; |
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105 want[i].b = b; |
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106 } |
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107 nwant = 216; |
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108 } |
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109 if(SDL_iconcolors) { |
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110 /* free already allocated colours first */ |
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111 unsigned long freelist[512]; |
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112 int nfree = 0; |
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113 for(i = 0; i < 256; i++) { |
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114 while(SDL_iconcolors[i]) { |
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115 freelist[nfree++] = i; |
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116 SDL_iconcolors[i]--; |
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117 } |
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118 } |
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119 XFreeColors(GFX_Display, dcmap, freelist, nfree, 0); |
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120 } |
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121 if(!SDL_iconcolors) |
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122 SDL_iconcolors = SDL_malloc(256 * sizeof *SDL_iconcolors); |
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123 SDL_memset(SDL_iconcolors, 0, 256 * sizeof *SDL_iconcolors); |
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124 |
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125 /* try to allocate the colours */ |
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126 SDL_memset(got, 0, sizeof got); |
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127 missing = 0; |
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128 for(i = 0; i < nwant; i++) { |
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129 XColor c; |
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130 c.red = want[i].r << 8; |
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131 c.green = want[i].g << 8; |
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132 c.blue = want[i].b << 8; |
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133 c.flags = DoRed | DoGreen | DoBlue; |
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134 if(XAllocColor(GFX_Display, dcmap, &c)) { |
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135 /* got the colour */ |
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136 SDL_iconcolors[c.pixel]++; |
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137 got[c.pixel] = want[i]; |
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138 } else { |
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139 missing = 1; |
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140 } |
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141 } |
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142 if(missing) { |
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143 /* Some colours were apparently missing, so we just |
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144 allocate all the rest as well */ |
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145 XColor cols[256]; |
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146 for(i = 0; i < 256; i++) |
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147 cols[i].pixel = i; |
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148 XQueryColors(GFX_Display, dcmap, cols, 256); |
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149 for(i = 0; i < 256; i++) { |
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150 got[i].r = cols[i].red >> 8; |
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151 got[i].g = cols[i].green >> 8; |
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152 got[i].b = cols[i].blue >> 8; |
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153 if(!SDL_iconcolors[i]) { |
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154 if(XAllocColor(GFX_Display, dcmap, |
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155 cols + i)) { |
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156 SDL_iconcolors[i] = 1; |
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157 } else { |
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158 /* index not available */ |
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159 got[i].r = 0; |
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160 got[i].g = 0; |
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161 got[i].b = 0; |
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162 } |
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163 } |
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164 } |
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165 } |
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166 |
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167 SDL_SetColors(sicon, got, 0, 256); |
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168 } |
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169 |
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170 bounds.x = 0; |
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171 bounds.y = 0; |
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172 bounds.w = icon->w; |
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173 bounds.h = icon->h; |
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174 if ( SDL_LowerBlit(icon, &bounds, sicon, &bounds) < 0 ) |
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175 goto done; |
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176 |
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177 /* We need the mask as given, except in LSBfirst format instead of |
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178 MSBfirst. Reverse the bits in each byte. */ |
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179 masksize = ((sicon->w + 7) >> 3) * sicon->h; |
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180 LSBmask = SDL_malloc(masksize); |
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181 if ( LSBmask == NULL ) { |
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182 goto done; |
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183 } |
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184 SDL_memset(LSBmask, 0, masksize); |
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185 for(i = 0; i < masksize; i++) |
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186 LSBmask[i] = reverse_byte(mask[i]); |
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187 mask_pixmap = XCreatePixmapFromBitmapData(SDL_Display, WMwindow, |
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188 (char *)LSBmask, |
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189 sicon->w, sicon->h, |
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190 1L, 0L, 1); |
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191 |
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192 /* Transfer the image to an X11 pixmap */ |
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193 icon_image = XCreateImage(SDL_Display, |
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194 DefaultVisual(SDL_Display, SDL_Screen), |
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195 DefaultDepth(SDL_Display, SDL_Screen), |
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196 ZPixmap, 0, sicon->pixels, |
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197 sicon->w, sicon->h, |
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198 32, 0); |
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199 icon_image->byte_order = (SDL_BYTEORDER == SDL_BIG_ENDIAN) |
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200 ? MSBFirst : LSBFirst; |
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201 icon_pixmap = XCreatePixmap(SDL_Display, SDL_Root, sicon->w, sicon->h, |
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202 DefaultDepth(SDL_Display, SDL_Screen)); |
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203 gc = XCreateGC(SDL_Display, icon_pixmap, 0, &GCvalues); |
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204 XPutImage(SDL_Display, icon_pixmap, gc, icon_image, |
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205 0, 0, 0, 0, sicon->w, sicon->h); |
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206 XFreeGC(SDL_Display, gc); |
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207 XDestroyImage(icon_image); |
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208 SDL_free(LSBmask); |
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209 sicon->pixels = NULL; |
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210 |
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211 /* Some buggy window managers (some versions of Enlightenment, it |
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212 seems) need an icon window *and* icon pixmap to work properly, while |
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213 it screws up others. The default is only to use a pixmap. */ |
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214 p = SDL_getenv("SDL_VIDEO_X11_ICONWIN"); |
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215 if(p && *p) { |
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216 icon_window = XCreateSimpleWindow(SDL_Display, SDL_Root, |
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217 0, 0, sicon->w, sicon->h, 0, |
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218 CopyFromParent, |
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219 CopyFromParent); |
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220 XSetWindowBackgroundPixmap(SDL_Display, icon_window, |
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221 icon_pixmap); |
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222 XClearWindow(SDL_Display, icon_window); |
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223 } |
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224 |
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225 /* Set the window icon to the icon pixmap (and icon window) */ |
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226 wmhints = XAllocWMHints(); |
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227 wmhints->flags = (IconPixmapHint | IconMaskHint); |
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228 wmhints->icon_pixmap = icon_pixmap; |
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229 wmhints->icon_mask = mask_pixmap; |
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230 if(icon_window != None) { |
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231 wmhints->flags |= IconWindowHint; |
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232 wmhints->icon_window = icon_window; |
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233 } |
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234 XSetWMHints(SDL_Display, WMwindow, wmhints); |
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235 XFree(wmhints); |
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236 XSync(SDL_Display, False); |
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237 |
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238 done: |
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239 SDL_Unlock_EventThread(); |
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240 SDL_FreeSurface(sicon); |
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241 } |
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242 |
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243 void X11_SetCaptionNoLock(_THIS, const char *title, const char *icon) |
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244 { |
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245 XTextProperty titleprop, iconprop; |
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246 Status status; |
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247 |
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248 #ifdef X_HAVE_UTF8_STRING |
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249 Atom _NET_WM_NAME = 0; |
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250 Atom _NET_WM_ICON_NAME = 0; |
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251 |
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252 /* Look up some useful Atoms */ |
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253 if (SDL_X11_HAVE_UTF8) { |
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254 _NET_WM_NAME = XInternAtom(SDL_Display, "_NET_WM_NAME", False); |
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255 _NET_WM_ICON_NAME = XInternAtom(SDL_Display, "_NET_WM_ICON_NAME", False); |
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256 } |
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257 #endif |
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258 |
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259 if ( title != NULL ) { |
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260 char *title_locale = SDL_iconv_utf8_locale(title); |
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261 if ( !title_locale ) { |
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262 SDL_OutOfMemory(); |
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263 return; |
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264 } |
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265 status = XStringListToTextProperty(&title_locale, 1, &titleprop); |
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266 SDL_free(title_locale); |
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267 if ( status ) { |
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268 XSetTextProperty(SDL_Display, WMwindow, &titleprop, XA_WM_NAME); |
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269 XFree(titleprop.value); |
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270 } |
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271 #ifdef X_HAVE_UTF8_STRING |
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272 if (SDL_X11_HAVE_UTF8) { |
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273 status = Xutf8TextListToTextProperty(SDL_Display, |
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274 (char **)&title, 1, XUTF8StringStyle, &titleprop); |
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275 if ( status == Success ) { |
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276 XSetTextProperty(SDL_Display, WMwindow, &titleprop, _NET_WM_NAME); |
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277 XFree(titleprop.value); |
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278 } |
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279 } |
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280 #endif |
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281 } |
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282 if ( icon != NULL ) { |
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283 char *icon_locale = SDL_iconv_utf8_locale(icon); |
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284 if ( !icon_locale ) { |
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285 SDL_OutOfMemory(); |
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286 return; |
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287 } |
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288 status = XStringListToTextProperty(&icon_locale, 1, &iconprop); |
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289 SDL_free(icon_locale); |
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290 if ( status ) { |
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291 XSetTextProperty(SDL_Display, WMwindow, &iconprop, XA_WM_ICON_NAME); |
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292 XFree(iconprop.value); |
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293 } |
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294 #ifdef X_HAVE_UTF8_STRING |
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295 if (SDL_X11_HAVE_UTF8) { |
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296 status = Xutf8TextListToTextProperty(SDL_Display, |
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297 (char **)&icon, 1, XUTF8StringStyle, &iconprop); |
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298 if ( status == Success ) { |
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299 XSetTextProperty(SDL_Display, WMwindow, &iconprop, _NET_WM_ICON_NAME); |
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300 XFree(iconprop.value); |
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301 } |
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302 } |
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303 #endif |
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304 } |
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305 XSync(SDL_Display, False); |
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306 } |
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307 |
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308 void X11_SetCaption(_THIS, const char *title, const char *icon) |
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309 { |
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310 SDL_Lock_EventThread(); |
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311 X11_SetCaptionNoLock(this, title, icon); |
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312 SDL_Unlock_EventThread(); |
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313 } |
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314 |
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315 /* Iconify the window */ |
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316 int X11_IconifyWindow(_THIS) |
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317 { |
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318 int result; |
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319 |
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320 SDL_Lock_EventThread(); |
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321 result = XIconifyWindow(SDL_Display, WMwindow, SDL_Screen); |
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322 XSync(SDL_Display, False); |
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323 SDL_Unlock_EventThread(); |
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324 return(result); |
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325 } |
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326 |
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327 SDL_GrabMode X11_GrabInputNoLock(_THIS, SDL_GrabMode mode) |
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328 { |
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329 int result; |
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330 |
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331 if ( this->screen == NULL ) { |
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332 return(SDL_GRAB_OFF); |
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333 } |
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334 if ( ! SDL_Window ) { |
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335 return(mode); /* Will be set later on mode switch */ |
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336 } |
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337 if ( mode == SDL_GRAB_OFF ) { |
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338 XUngrabPointer(SDL_Display, CurrentTime); |
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339 XUngrabKeyboard(SDL_Display, CurrentTime); |
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340 } else { |
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341 if ( this->screen->flags & SDL_FULLSCREEN ) { |
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342 /* Unbind the mouse from the fullscreen window */ |
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343 XUngrabPointer(SDL_Display, CurrentTime); |
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344 } |
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345 /* Try to grab the mouse */ |
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346 #if 0 /* We'll wait here until we actually grab, otherwise behavior undefined */ |
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347 for ( numtries = 0; numtries < 10; ++numtries ) { |
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348 #else |
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349 for ( ; ; ) { |
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350 #endif |
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351 result = XGrabPointer(SDL_Display, SDL_Window, True, 0, |
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352 GrabModeAsync, GrabModeAsync, |
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353 SDL_Window, None, CurrentTime); |
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354 if ( result == GrabSuccess ) { |
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355 break; |
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356 } |
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357 SDL_Delay(100); |
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358 } |
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359 if ( result != GrabSuccess ) { |
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360 /* Uh, oh, what do we do here? */ ; |
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361 } |
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362 /* Now grab the keyboard */ |
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363 XGrabKeyboard(SDL_Display, WMwindow, True, |
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364 GrabModeAsync, GrabModeAsync, CurrentTime); |
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365 |
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366 /* Raise the window if we grab the mouse */ |
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367 if ( !(this->screen->flags & SDL_FULLSCREEN) ) |
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368 XRaiseWindow(SDL_Display, WMwindow); |
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369 |
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370 /* Make sure we register input focus */ |
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371 SDL_PrivateAppActive(1, SDL_APPINPUTFOCUS); |
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372 /* Since we grabbed the pointer, we have mouse focus, too. */ |
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373 SDL_PrivateAppActive(1, SDL_APPMOUSEFOCUS); |
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374 } |
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375 XSync(SDL_Display, False); |
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376 |
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377 return(mode); |
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378 } |
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379 |
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380 SDL_GrabMode X11_GrabInput(_THIS, SDL_GrabMode mode) |
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381 { |
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382 SDL_Lock_EventThread(); |
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383 mode = X11_GrabInputNoLock(this, mode); |
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384 SDL_Unlock_EventThread(); |
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385 |
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386 return(mode); |
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387 } |
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388 |
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389 /* If 'info' is the right version, this function fills it and returns 1. |
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390 Otherwise, in case of a version mismatch, it returns -1. |
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391 */ |
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392 static void lock_display(void) |
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393 { |
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394 SDL_Lock_EventThread(); |
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395 } |
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396 static void unlock_display(void) |
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397 { |
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398 /* Make sure any X11 transactions are completed */ |
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399 SDL_VideoDevice *this = current_video; |
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400 XSync(SDL_Display, False); |
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401 SDL_Unlock_EventThread(); |
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402 } |
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403 |
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404 #include <stdio.h> |
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405 int X11_GetWMInfo(_THIS, SDL_SysWMinfo *info) |
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406 { |
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407 if ( info->version.major <= SDL_MAJOR_VERSION ) { |
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408 info->subsystem = SDL_SYSWM_X11; |
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409 info->info.x11.display = SDL_Display; |
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410 info->info.x11.window = SDL_Window; |
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411 if ( SDL_VERSIONNUM(info->version.major, |
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412 info->version.minor, |
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413 info->version.patch) >= 1002 ) { |
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414 info->info.x11.fswindow = FSwindow; |
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415 info->info.x11.wmwindow = WMwindow; |
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416 } |
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417 |
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418 |
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419 if ( SDL_VERSIONNUM(info->version.major, |
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420 info->version.minor, |
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421 info->version.patch) >= 1212 ) { |
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422 info->info.x11.gfxdisplay = GFX_Display; |
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423 } |
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424 |
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425 info->info.x11.lock_func = lock_display; |
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426 info->info.x11.unlock_func = unlock_display; |
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427 return(1); |
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428 } else { |
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429 SDL_SetError("Application not compiled with SDL %d.%d\n", |
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430 SDL_MAJOR_VERSION, SDL_MINOR_VERSION); |
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431 return(-1); |
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432 } |
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433 } |